Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import macro from 'vtk.js/Sources/macros';
import vtkPolyData from 'vtk.js/Sources/Common/DataModel/PolyData';
import DataAccessHelper from 'vtk.js/Sources/IO/Core/DataAccessHelper';
// Enable several sources for DataAccessHelper
import 'vtk.js/Sources/IO/Core/DataAccessHelper/LiteHttpDataAccessHelper'; // Just need HTTP
// import 'vtk.js/Sources/IO/Core/DataAccessHelper/HttpDataAccessHelper'; // HTTP + gz
// import 'vtk.js/Sources/IO/Core/DataAccessHelper/HtmlDataAccessHelper'; // html + base64 + zip
// import 'vtk.js/Sources/IO/Core/DataAccessHelper/JSZipDataAccessHelper'; // zip
// ----------------------------------------------------------------------------
// vtkElevationReader methods
// ----------------------------------------------------------------------------
function vtkJSONNucleoReader(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkJSONNucleoReader');
// Create default dataAccessHelper if not available
if (!model.dataAccessHelper) {
model.dataAccessHelper = DataAccessHelper.get('http');
}
// Internal method to fetch Array
function fetchText(url, options) {
return model.dataAccessHelper.fetchText(publicAPI, url, options);
}
// Set DataSet url
publicAPI.setUrl = (url, options) => {
model.url = url;
// Fetch metadata
return publicAPI.loadData(options);
};
// Fetch the actual data arrays
publicAPI.loadData = (options) =>
fetchText(model.url, options).then((csv) => {
publicAPI.parseAsText(csv);
return true;
});
publicAPI.parseAsText = (jsonAsTxt) => {
const { vertices, indices } = JSON.parse(jsonAsTxt);
const nbIndices = indices.length;
const nbTriangles = nbIndices / 3;
const nbCellsValues = nbTriangles + nbIndices;
model.points = Float32Array.from(vertices);
model.polys =
nbCellsValues < 65535
? new Uint16Array(nbCellsValues)
: new Uint32Array(nbCellsValues);
let srcOffset = 0;
let destOffset = 0;
while (destOffset < model.polys.length) {
model.polys[destOffset++] = 3;
model.polys[destOffset++] = indices[srcOffset++];
model.polys[destOffset++] = indices[srcOffset++];
model.polys[destOffset++] = indices[srcOffset++];
}
publicAPI.modified();
};
publicAPI.requestData = (inData, outData) => {
const polydata = vtkPolyData.newInstance();
polydata.getPoints().setData(model.points, 3);
polydata.getPolys().setData(model.polys);
model.output[0] = polydata;
};
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
// dataAccessHelper: null,
// url: null,
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Build VTK API
macro.obj(publicAPI, model);
macro.get(publicAPI, model, ['url']);
macro.setGet(publicAPI, model, ['dataAccessHelper']);
macro.algo(publicAPI, model, 0, 1);
// Object methods
vtkJSONNucleoReader(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend, 'vtkJSONNucleoReader');
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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